Muscular strength and explosiveness must be developed in conjunction with flexibility if the athlete is to maximize the jumping ability and reduce the risk of injury to structures such as the Achilles tendon and knee ligaments. Flexibility, when achieved through focused stretching programs, will serve to increase the range of motion in the joints essential to jumping: the ankles, knees, and hips. A common muscular deficiency that plagues athletes who require well-developed leaping ability is a lack of flexibility and resultant strength imbalance between the quadriceps (thigh) muscles and the hamstrings, the pair of muscles responsible for the flexion and the extension of the knee. Proper stretching will assist the athlete in the maintenance of an approximate 3:2 ratio in the relative strength of the quadriceps to the hamstring. When there is a significant deviation from that proportion, the knee and the muscles themselves are at greater risk of injury.
Other binary end points were analyzed with the use of chi-square tests, and continuous variables were compared by means of an unpaired Student's t-test or a Wilcoxon rank-sum test, as appropriate, with the use of SPSS software, version 13.0 (SPSS). All reported P values are two-sided and have not been adjusted for multiple testing. The study statistician and investigators remained unaware of the patients' treatment assignments while they performed the final analyses.
So, you are probably wondering what the difference is right? Well, the first big difference is in the look. If you want to look the best while doing your jump shoes the Jump 99 will be one complete unit that will look better than the Jumpsoles. Now that doesn't have anything to do with jumping higher but we know players care about how they look when training so that is an advantage for the Jump 99 shoe.
You can assist in recording your score by holding a piece of chalk in your had and using it to mark the wall. If the wall already has horizontal lines, such as a brick wall, it will be easier to mark your jump height. Have as many attempts as you need to get the best possible score. Practice your technique, as the jump height can be affected by how much you bend your knees before jumping, and the effective use of the arms.
After warming up, I proceeded to slam Jeff’s best lobs off the back rim at least 10 times, watching these missed dunks rebound high over the lane and land somewhere near the three-point line. It’s tough to express how difficult it was to pack up and walk away from the court on such days, to listen to my body when it told me it had reached the point of diminishing returns. To come up with yet another way to tell the wife: No, not today, Sugar. But I came reeeally close.
The vertical jump is one of the most explosive physical movements executed in sport. In a number of sports, the higher the athlete is able to jump, the greater the prospects of success in that discipline. Basketball and volleyball are the two most prominent examples of sports where that correlation is plain. The jumping ability of an athlete is also an indicator of overall athletic ability, as there is a clear relationship between the ability to jump and the running speed that the athlete will develop over short distances. The National Football League, where prospective players are subjected to various physical tests, requires every player to be tested for both vertical leaps and 40-yd (37 m) sprints, irrespective of the position played.
7. Antman EM, Anbe DT, Armstrong PW, et al. ACC/AHA guidelines for the management of patients with ST-elevation myocardial infarction: a report of the American College of Cardiology/American Heart Association Task Force on Practice Guidelines (Committee to Revise the 1999 Guidelines for the Management of Patients with Acute Myocardial Infarction). Circulation 2004;110:e82-e292[Erratum, Circulation 2005;111:2013-4, 2007;115(15):e411.]
To start the test, you need to stand with your right side against a wall. If you have access to a chalk board or a vertex (the measuring tool used by biokineticists), it makes this easier, however, you can use an outside wall. For the first marking, stand in your training shoes with your right hip against the wall. Reach up with your right hand to touch the wall at the highest point possible (while keeping your heels flat on the ground). Mark this point with chalk, as this is your “standing height.”
At the onset of the jump, the ball is controlled by either one or both hands and once in the air is typically brought to chest level. The player will then quickly thrust the ball downwards and fully extend their arms, bringing the ball below the waist. Finally the ball is brought above the head and dunked with one or both hands; and the double clutch appears as one fluid motion. As a demonstration of athletic prowess, the ball may be held in the below-the-waist position for milliseconds longer, thus showcasing the player's hang time (jumping ability).
Cancel, pause, or adjust your order at any time, hassle free. Your credit card will only be charged when your order ships. The discount applied every time is 15% off. Since it would be weird to subscribe to a kettlebell, the subscriptions and subscription discounts are only for things you'll need often, like supplements, foods, and personal care items.
Learn about plyometrics. Plyometrics are exercises that use the resistance of your own body to build strength and are essential for building the kind of strength necessary to build your jump. It takes time to train your body to jump higher, but working the right muscle groups can improve your explosiveness and height without maxing out regularly in the weight room.
Increase your vertical leap. You will need the lifting power of your legs to get you in the air and up to the basket. Building a regimen of leg workouts that will increase the fast-twitch strength and the flexibility of your leg muscles can help you add inches to your vertical leap, getting you that much closer to the rim.[2] A good regimen to get started with might include:

During the 1940s and 1950s, 7-foot center and Olympic gold medalist Bob Kurland was dunking regularly during games.[7] Yet defenders viewed the execution of a slam dunk as a personal affront that deserved retribution; thus defenders often intimidated offensive players and thwarted the move. Satch Sanders, a career Boston Celtic from 1960 to 1973, said:
When I started to work on the video tool that measures vertical jump, I had to dust off my old textbooks to learn about the relationship between hang time and jump height. And to my surprise, it turned out that the vertical jump is a great (and interesting!) example of the laws of physics at work. You can really learn about the relationship between velocity, acceleration, forces and hang time. Definitely more interesting than the average example of your physics textbook!
Start with a ping-pong ball, then a tennis ball, then a softball, then a volleyball, then a youth-sized basketball, and on up until you can dunk with a regulation size ball. If you can't palm the ball, then you will need to learn how to control the ball with two hands until the last minute extension for the dunk with one hand, or you will have to jump high enough to dunk two-handed.
In fact, if you are a very short player and can barely reach the net when you jump you should probably put the dream of dunking the ball out of your mind. Better to spend time working on your layups and ball-handling skills. You can still lift weights and do all the other things to increase your vertical leap, and you can still be a very effective player.
At the competitive level (i.e., the NFL and NBA combines), vertical leap is measured using a “jump tester”—a tripod with a series of thin plastic sticks one inch apart. If you have access to this equipment, it’s your best bet for getting an accurate measurement. A cheaper, more feasible option is to do your jump next to a wall and mark the highest point you touch with a piece of chalk.
A predefined subgroup analysis was conducted according to the type of shock — septic shock, which occurred in 1044 patients (542 in the dopamine group and 502 in the norepinephrine group); cardiogenic shock, which occurred in 280 patients (135 in the dopamine group and 145 in the norepinephrine group); or hypovolemic shock, which occurred in 263 patients (138 in the dopamine group and 125 in the norepinephrine group). The overall effect of treatment did not differ significantly among these subgroups (P=0.87 for interaction), although the rate of death at 28 days was significantly higher among patients with cardiogenic shock who were treated with dopamine than among those with cardiogenic shock who were treated with norepinephrine (P=0.03) (Figure 3). The Kaplan–Meier curves for the subgroup analysis according to type of shock are shown in Figure 7 in the Supplementary Appendix.
Each time you land, spring immediately back up. Don’t hesitate. The single beat that typically happens after we hit the ground is a natural reflex, and we may not even realize we’re doing it. But that extra pause has to go if we’re looking for a way to jump higher. Check the mirror or watch videos of yourself as you hit the ground. The momentary pause you may see between one vertical jump and the next may be holding you back. For more detail on how this works, visit the plyometrics section of our website.
In the 2000 NBA Slam Dunk Contest Carter used an elbow hang along with his reverse 360 windmill dunk and between-the-legs dunk. When performed, much of the audience was speechless, including the judges, because none had seen these types of dunks before (Carter's first round 360 windmill dunk is reminiscent of Kenny Walker's 360 windmill dunk in 1989 except that Carter spins clockwise, whereas Walker spins counter-clockwise).

Stand with your feet shoulder-width apart. Keeping your back straight, bend at your knees and hips as if you are attempting to sit in a chair until your thighs are parallel with the floor. Simultaneously extend your arms straight out in front of you. From this position jump up, straighten your legs and swing your arms back down to the side of your body. Repeat 25 jumping squats in a row for three sets with a 1-minute break between sets.


I have to admit...I bought this for my 5 year old son, but I found it to be just as enjoyable! Setup took a matter of minutes before he was launching his first rocket in the air. he was impressed with the THUMP followed by a dissapearing act as it launched into the sky. After he had a few tries it was my turn, I assumed it would not handle my 200lb frame very well so I started light and worked my way up to an all out double foot stomp that left craters where I landed. The SQUEEEEEL from my son as the rocket nearly "went to the moon" was priceless. We lost a few rockets that day to rooftops, damage from landing on pavement, and one down a difficult to repeat sewer drain. I advise to have the little ones wear safety ... full review
Hi I'm 14 years old and 6 foot 4 I can dunk but not really good like I need more air so that I can dunk better and I'm trying to get my vertical jump up to 5 feet my vertical you probably will say that's crazy but it's possible a really love it that a 13 year old can dunk but I want to do something amazing and that is to be better that micheal Jordan and I will succeed thank you so much hope you see me in the NBA .
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Dunking isn’t much different. You’ll likely find yourself getting slightly higher with each attempt at first, but before long, fatigue will set in and your vertical leap will decrease. At this point, it’s a good idea to end the session, rather than try to push through and force yourself to jump higher. It’s an indication that your nervous system has mustered all the energy it has to help you jump, and you need to let it rest. Give your legs a couple days’ off, then come back again and try.
An alley-oop dunk, as it is colloquially known, is performed when a pass is caught in the air and then dunked. The application of an alley-oop to a slam dunk occurs in both games and contests. In games, when only fractions of a second remain on the game or shot clock, an alley-oop may be attempted on in-bound pass because neither clock resumes counting down until an in-bounds player touches the ball. The images to the right depict an interval spanning 1/5 of a second.

A common, low-tech plyometrics method is performing box jumps, where the athlete jumps repeatedly from the floor to the top of the box and back again. By concentrating on the mechanics of the jump, directing propulsion from the balls of the feet and thrusting with an explosive extension of the legs, the ability of the athlete to land lightly and immediately return to the floor enhances motor control over the movement.
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